MSSQL网页编程之PL/SQL Developer 6.0.4.906出格版
提供用于管理、检查、优化数据库操作的管理工具。PL/SQLDeveloper是我平常办理Oracle数据库利用最频仍的Oracle客户端GUI程序。今朝最新的版本是:6.0.4
January5,2005-Version6.0.4releasedEnhancementsPackagebodies,typebodies,andmaterializedviewswoulddisappearfromuserdefinedfoldersOpeningauserdefinedfolderwhendisconnectedwouldleadto"Notloggedon"messagesReportsmenudidnotshowdirectorieswithonlysubdirectoriescorrectInstantiableandfinalmemberprocedureswerenotdisplayedcorrectlyintheCodeContentsTextImporterfileassociationsarenowstoredinuser.prefs,notinImportimport.filesSQL()functionaddedtoDataGeneratorTablecreationDDLforpartitionvaluesendingwithaparenthesiswereincorrectPopupmenuinvariouseditorsweremissing"InsertTemplate"submenuFixed"cannotconvertstringtodouble"errorFixedproblemwithdisappearinglastrowwhilepastingintogridTitleofProgramWindowwouldnotchangefromViewtoEditifWindowchangedtoEditmodeCommandwindowsnowdisplaysCLOBandXMLTYPEinaccordancewiththeSETLONGsettingReplaceAllinFinddialognowalsoincludesthecurrentselectionCodeAssistantcouldnotresolvelocalvariablenamesinaTestScriptorTriggerCodeAssistantcouldnotresolvevariablesofatypeinanotherschemaCommandWindowandSQLWindowwillnolongersilentlyretryafter"ORA-04068,Existingstateofpackageshasbeendiscarded"Usingavariableinanexceptionhandlercouldcauseincorrect"Unusedvariablevalue"hintDouble-clickingonapackageintheObjectBrowsercoulddisplay2ProgramWindowsifthepackagebodywaswrappedPastingdatainresultgriddidnotupdateNULLindicatorcolorAddedsoundtoWarningandErrormessagesDataGeneratorcouldgivea"listindexoutofbounds"forFiles()functionwithonlyonefileLogonHistorydidnotalwaysdisplayallgroupeditemsFixedlinktoDirectOracleAccess(5variableslimit)CopycommaseparatedfrombrowserwouldnotworkforclosedfoldersSuppresseddialogs(Dontshowthismessageagain)stillgaveasoundDuplicatereports(samepathandfile)inreportsmenupreventedProgramWindowcouldsplitsourceonaslashinthemiddleofalineDroppinganobjectintheSQLWindowwouldnotupdatetheObjectBrowserReplaceAllwasnotrestrictedtotheselectedscopePreference"Wraptostart/endoffilewhentextisnotfound"didnotworkUsing+variableor-variablecouldcauseincorrect"Unusedvariable"hintsCommandWindownowissuesawarningwhenaconnectionisre-establishedRefreshingtheSessionWindowwithadisconnectedPL/SQLDevelopersessionwouldcauseerrorsSQLWindowalwaysauto-sizescolumnsunlessyouhaveexplicitlyresizedacolumnRecentfileslistisnowpassedtoasecondPL/SQLDeveloperinstance出格版已上载到Itpub的2号FTP中-/incoming/PLSQL.Dev.by.Kamus/目次中,用户名和暗码能够从Itpub论坛的受权用户区失掉。MySQL是一个开放源码的小型关联式数据库管理系统,开发者为瑞典MySQLAB公司。目前MySQL被广泛地应用在Internet上的中小型网站中。 其中最有名的应该是row_number了。这个终于解决了用临时表生成序列号的历史,而且SQLServer2005的row_number比Oracle的更先进。因为它把Orderby集成到了一起,不用像Oracle那样还要用子查询进行封装。 原理很简单,对要求长时间计算某一时间点的报表生成和防用户操作错误很有帮助。但是比起Oracle10g的闪回技术还是细粒度不够。可惜! 很多书籍啊,不过个人认为看书太慢,还不如自己学。多做实际的东西,就会遇到很多问题,网上搜下解决问题。不断重复这个过程,在配合sql的F1功能。 财务软件要用SQL也只是后台的数据库而已,软件都是成品的,当然多学东西肯定是有好处的.. 再开发调试阶段和OLAP环境中,外键是可以建立的。新版本中加入了SETNULL和SETDEFAULT属性,能够提供能好的级联设置。 可能有的朋友会抱怨集成的orderby,其实如果使用ranking函数,Orderby是少不了的。如果担心Orderby会影响效率,可以为orderby的字段建立聚集索引,查询计划会忽略orderby操作(因为本来就是排序的嘛)。 我个人认为就是孜孜不懈的学习
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